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高铌TiAl合金表面硅化物涂层的组织结构及其宽温域摩擦学性能

李涌泉 郝清锐 王存喜 刘广君 高阳 李轩

李涌泉, 郝清锐, 王存喜, 等. 高铌TiAl合金表面硅化物涂层的组织结构及其宽温域摩擦学性能[J]. 复合材料学报, 2024, 42(0): 1-9.
引用本文: 李涌泉, 郝清锐, 王存喜, 等. 高铌TiAl合金表面硅化物涂层的组织结构及其宽温域摩擦学性能[J]. 复合材料学报, 2024, 42(0): 1-9.
LI Yongquan, HAO Qingrui, WANG Cunxi, et al. Microstructure and Wide-temperature Range Tribological Properties of Silicide Coatings on High Niobium TiAl Alloy[J]. Acta Materiae Compositae Sinica.
Citation: LI Yongquan, HAO Qingrui, WANG Cunxi, et al. Microstructure and Wide-temperature Range Tribological Properties of Silicide Coatings on High Niobium TiAl Alloy[J]. Acta Materiae Compositae Sinica.

高铌TiAl合金表面硅化物涂层的组织结构及其宽温域摩擦学性能

基金项目: 北方民族大学中央高校基本科研业务费 (26);国家自然科学基金(52161009);过程装备与控制工程四川省高校重点实验室项目(GK202309);宁夏复合制造系统工程技术研究中心 (2023GCJS008)
详细信息
    通讯作者:

    李涌泉,博士,副教授,硕士生导师,研究方向为结构材料的服役损伤与表面控制技术 E-mail: 8386595@163.com

  • 中图分类号: (TG174.44;TB331)

Microstructure and Wide-temperature Range Tribological Properties of Silicide Coatings on High Niobium TiAl Alloy

Funds: Basic Research Fund for Central Universities of North Minzu University (26); National Natural Science Foundation of China (52161009); Key Laboratory Project of Process Equipment and Control Engineering (GK202309); Ningxia Engineering Research Center for Hybrid Manufuring System (2023GCJS008)
  • 摘要: 为了改善TiAlNb金属间化合物抗氧化耐磨损性能不足的问题,通过扩散渗法在TiAlNb9合金表面制备了双稀土改性的硅化物涂层,并对其微观结构与相组成进行了分析表征,对比研究了TiAlNb9基体和Si-Ce-Y共渗层与WC球在宽温域下的摩擦磨损行为。结果表明:不同催化剂NaF,NH4Cl,AlCl3·6H2O所制备的渗层均具有多层结构,从外到内依次为(Ti,Nb)Si2、(Ti,Nb)5Si4和(Ti,Nb)5Si3外层,(Ti,Nb)5Si4及(Ti,Nb)5Si3中间层,TiAl2内层,催化剂类型对渗层的致密性有显著影响。在实验条件下,Si-Ce-Y共渗层的抗摩擦磨损性能明显优于TiAlNb9基体,TiAlNb9基体在20℃的磨损机制为磨粒磨损和犁削磨损,在600℃下的磨损机制主要为氧化磨损、犁削磨损、磨粒磨损;Si-Ce-Y共渗层在20℃及600℃下的磨损机制相似,均为削层磨损和磨粒磨损。

     

  • 图  1  滑动-摩擦磨损示意图

    Figure  1.  Schematic illustration of the sliding friction and wear testing apparatus

    图  2  不同催化剂制备的Si-Ce-Y共渗层的截面形貌和元素浓度分布曲线 ((a),(a')) NH4Cl;((b),(b')) AlCl3·6 H2O;((c),(c')) NaF

    Figure  2.  Cross-sectional morphology and elemental concentration distribution curves of the Si-Ce-Y co-deposition coating prepared using different types of catalysts ((a),(a')) NH4Cl; ((b),(b'))AlCl3·6 H2O; ((c),(c'))NaF, 1-4 EDS Test point

    图  3  采用不同类型催化剂制备的Si-Ce-Y共渗层的表面XRD图谱

    Figure  3.  Surface XRD patterns of Si-Ce-Y co-deposition coating prepared using different types of catalysts

    图  4  采用NaF作为催化剂制备的Si-Ce-Y共渗层的中间层和内层的XRD图谱

    Figure  4.  XRD patterns of the intermediate and inner layer of Si-Ce-Y co-deposition coating prepared with NaF as activator

    图  5  TiAlNb9合金及Si-Y共渗层的宽温域摩擦系数曲线,(a) 20℃,(b) 600℃

    Figure  5.  Wide-temperature friction coefficients of TiAlNb9 alloy and Si-Y co-deposition coating, (a) 20℃,(b) 600℃

    图  6  宽温域下TiAlNb9合金和Si-Ce-Y共渗层与WC球对磨时的磨损率

    Figure  6.  Wear rates of TiAlNb9 alloy and Si-Ce-Y coating with WC ball at Wide-temperatures

    图  7  TiAlNb9合金和WC球20℃下的磨损形貌, (a), (b) TiAlNb9基体, (c) WC球

    Figure  7.  Wear scars of TiAlNb9 alloy and WC counterpart at 20℃, (a), (b) TiAlNb9 alloy, (c) WC counterpart, 5-6 EDS Test point

    图  10  Si-Ce-Y共渗层和WC球600℃下的磨损形貌, (a), (b) Si-Ce-Y共渗层, (c) WC球

    Figure  10.  Wear scars of Si-Ce-Y coating and WC counterpart at 600℃, (a), (b) Si-Ce-Y coating, (c) WC counterpart, 14-15 EDS Test point

    图  8  TiAlNb9合金和WC球600℃下的磨损形貌, (a), (b) TiAlNb9基体, (c) WC球

    Figure  8.  Wear scars of TiAlNb9 alloy and WC counterpart at 600℃, (a), (b) TiAlNb9 alloy, (c) WC counterpart, 7-9 EDS Test point

    图  9  Si-Ce-Y共渗层和WC球20℃下的磨损形貌, (a), (b) Si-Ce-Y共渗层, (c) WC球

    Figure  9.  Wear scars of Si-Ce-Y coating and WC counterpart at 20℃, (a), (b) Si-Ce-Y coating, (c) WC counterpart, 10-13 EDS Test point

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  • 收稿日期:  2023-12-18
  • 修回日期:  2024-01-27
  • 录用日期:  2024-02-03
  • 网络出版日期:  2024-03-28

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